mcs/class/Mono.PEToolkit/metadata/MDTable.cs

   1 /*
   2  * Copyright (c) 2002 Sergey Chaban <serge@wildwestsoftware.com>
   3  */
   4
   5 using System;
   6 using System.IO;
   7 using System.Collections;
   8 using System.Runtime.InteropServices;
   9
  10 namespace Mono.PEToolkit.Metadata {
  11
  12         public interface MDTable {
  13                 /// <summary>
  14                 /// Number of rows in the table.
  15                 /// </summary>
  16                 int NumberOfRows {get;}
  17
  18                 /// <summary>
  19                 /// Gets ot sets a row in the metadata table.
  20                 /// </summary>
  21                 Row this [int rowNum] {get; set;}
  22
  23                 void Add(Row row);
  24
  25                 void FromRawData(byte [] buff, int offs, int numRows);
  26
  27                 string Name {get;}
  28
  29                 TableId Id {get;}
  30
  31                 MDHeap Heap {get;}
  32
  33                 void Dump(TextWriter writer);
  34         }
  35
  36
  37         public abstract class MDTableBase : MDTable {
  38                 protected ArrayList rows; // rows storage
  39                 protected MDHeap heap;    // base heap
  40
  41                 public MDTableBase(MDHeap heap)
  42                 {
  43                         rows = new ArrayList();
  44                         this.heap = heap;
  45
  46                         if (heap is TablesHeap) {
  47                                 (heap as TablesHeap).RegisterTable(this);
  48                         }
  49                 }
  50
  51                 public virtual int NumberOfRows {
  52                         get {
  53                                 return rows.Count;
  54                         }
  55                 }
  56
  57
  58                 public virtual Row this [int rowNum] {
  59                         get {
  60                                 if (rowNum < 0) throw new IndexOutOfRangeException("Row[]");
  61
  62                                 // Zero row, special case
  63                                 if (rowNum == 0) return NullRow.Instance;
  64                                 return rows [rowNum - 1] as Row;
  65                         }
  66                         set {
  67                                 rows.Insert(rowNum, value);
  68                         }
  69                 }
  70
  71                 public virtual void Add(Row row)
  72                 {
  73                         rows.Add(row);
  74                 }
  75
  76                 public abstract void FromRawData(byte [] buff, int offs, int numRows);
  77
  78                 public abstract string Name {get;}
  79
  80                 public abstract TableId Id {get;}
  81
  82                 public virtual MDHeap Heap {
  83                         get {
  84                                 return heap;
  85                         }
  86                 }
  87
  88                 public virtual void Dump(TextWriter writer)
  89                 {
  90                         writer.WriteLine("=========================================");
  91                         writer.WriteLine("Table '{0}', id = {1} (0x{2}), rows = {3}",
  92                                 Name, Id, ((int) Id).ToString("X"), NumberOfRows);
  93                         int n = 1;
  94                         foreach (Row row in rows) {
  95                                 writer.WriteLine();
  96                                 writer.WriteLine("Row #{0}", n++);
  97                                 writer.WriteLine("-------------");
  98                                 row.Dump(writer);
  99                                 writer.WriteLine();
 100                         }
 101                 }
 102
 103         }
 104
 105 }